The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2015
Filed:
Nov. 08, 2013
Basf SE, Ludwigshafen, DE;
Xin Yang, Shanghai, CN;
Jörg Auffermann, Freinsheim, DE;
Carsten Sinkel, Mannheim, DE;
Jerome Lohmann, Landau, DE;
Robert Loos, Ludwigshafen, DE;
Gabriel Skupin, Speyer, DE;
Andreas Künkel, Neustadt, DE;
Lars Börger, Ludwigshafen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Disclosed is a biodegradable polyester mixture comprising 45 to 95 wt %, based on the total weight of polyester I and II, of a polyester I constructed from an aliphatic C-Cdicarboxylic acid or a C-Cdicarboxylic acid derivative; terephthalic acid or a terephthalic acid derivative; a C-Cdiol; an at least trihydric alcohol; and a chain extender. The biodegradable polyester mixture further comprises 5 to 55 wt %, based on the total weight of polyester I and II, of a polyester II constructed from an aliphatic C-Cdicarboxylic acid or a C-Cdicarboxylic acid derivative; terephthalic acid or a terephthalic acid derivative; a C-Cdiol; an at least trihydric alcohol; and a chain extender. The biodegradable polyester mixture further comprises 10 to 25 wt %, based on the total weight, of calcium carbonate; and 3 to 15 wt %, based on the total weight, of talc.